Coke Zero 400 - Practice

Chris Graythen

Danica Patrick, driver of the #10 GoDaddy.com Chevrolet, drives during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Danica Patrick, driver of the #10 GoDaddy.com Chevrolet, drives during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Coke Zero 400 - Practice

Chris Graythen

David Ragan, driver of the #34 Peanut Patch Boiled Peanuts Ford, races during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

David Ragan, driver of the #34 Peanut Patch Boiled Peanuts Ford, races during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Coke Zero 400 - Practice

Chris Graythen

Ryan Newman, driver of the #39 Outback Steakhouse Chevrolet, races during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Ryan Newman, driver of the #39 Outback Steakhouse Chevrolet, races during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Coke Zero 400 - Practice

Jared C. Tilton

Tony Stewart, driver of the #14 Bass Pro Shops / Ducks Unlimited Chevrolet, stands in the garage during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Tony Stewart, driver of the #14 Bass Pro Shops / Ducks Unlimited Chevrolet, stands in the garage during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Subway Firecracker 250 - Practice

Tom Pennington

Brian Scott, driver of the #2 Rain-X / Advance Auto Parts Chevrolet, and Parker Kligerman, driver of the #77 BanditChippers.com Toyota, during practice for the NASCAR Nationwide Series Subway Firecracker 250 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Brian Scott, driver of the #2 Rain-X / Advance Auto Parts Chevrolet, and Parker Kligerman, driver of the #77 BanditChippers.com Toyota, during practice for the NASCAR Nationwide Series Subway Firecracker 250 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Coke Zero 400 - Practice

Todd Warshaw

Michael Waltrip, driver of the #55 Aaron's Dream Machine Toyota, inspects a roof flag on his car during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Michael Waltrip, driver of the #55 Aaron's Dream Machine Toyota, inspects a roof flag on his car during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Coke Zero 400 - Practice

Scott Halleran

Kasey Kahne, driver of the #5 Hendrickcars.com Chevrolet, stands in the garage during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Kasey Kahne, driver of the #5 Hendrickcars.com Chevrolet, stands in the garage during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Coke Zero 400 - Practice

Mike Ehrmann

Ricky Stenhouse Jr., driver of the #17 Fifth Third Ford, walks through the garage area during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Ricky Stenhouse Jr., driver of the #17 Fifth Third Ford, walks through the garage area during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Coke Zero 400 - Practice

Mike Ehrmann

Tony Stewart, driver of the #14 Bass Pro Shops / Ducks Unlimited Chevrolet, signs autographs in the garage area during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.

Tony Stewart, driver of the #14 Bass Pro Shops / Ducks Unlimited Chevrolet, signs autographs in the garage area during practice for the NASCAR Sprint Cup Series Coke Zero 400 at Daytona International Speedway on July 4, 2013 in Daytona Beach, Florida.